INFORMATION PROCESSOR, INFORMATION PROCESSING SYSTEM, INFORMATION PROCESSING METHOD AND COMPUTER PROGRAM

摘要

PROBLEM TO BE SOLVED: To provide an information processor, an information processing system, an information processing method and a computer program capable of preventing the illegal update of data stored in a data storage medium.SOLUTION: A game machine 1 performs non-contact communication with a figure 5, and a data writing part 21 of the game machine 1 writes data related to a game in the figure 5. A processing part 10 stores the data written in the figure 5 as backup data in a secondary storage part 17. When reading the data from the figure 5, a data determination part 24 determines whether or not character data stored in the figure 5 and backup data stored in the secondary storage part 17 are in a predetermined relationship. When both data are not in the predetermined relationship, the processing part 10 overwrites the backup data of the secondary storage part 17 on the character data of the figure 5.